Home / 349,815.76-482,556.18-289,026.88

Finding the Fourth Proportional to 349,815.76, 482,556.18 and 289,026.88

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Solution

The fourth proportional to 349,815.76, 482,556.18 and 289,026.88 is: 398,700.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,815.76 : 482,556.18 = 289,026.88 : x
  2. Step 2: Convert to fraction form
    349,815.76/482,556.18 = 289,026.88/x
  3. Step 3: Cross multiply
    349,815.76x = 482,556.18 × 289,026.88
  4. Step 4: Simplify right side
    349,815.76x = 139,471,707,130.12
  5. Step 5: Solve for x
    x = 139,471,707,130.12/349,815.76
  6. Step 6: Final answer
    x = 398,700.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.